Calendar: 1884-1885 Page 670

664 APPLIED SCIENCES is 25 chains Slopes to Formation width 30 feet Bidders Tables used At an unknown distance from an observer 12 feet are covered on staff between the cross hair of level and movable pointer State how the distance can be determined Describe the principle on which the Omnimeter 13 constructed In setting out Tunnel state some of the chief points that require attention and how the operations are carried on What are the chief sources of error in levelling Describe the Sextant and how coast line is surveyed Explain in detail the way to set out curve where the point of intersection of the tangents is both accessible and inaccessible Describe the "Heliostat" and Plane Table 10 In river surveying describe the way in which gaugings are taken and the sources of error to be guarded against What is hydraulic mean depth י 11 The radius of curve and its tangent points being known how is its length calculated 12 At one cross section of proposed railway where the rails are to be 10 feet below the surface of the ground the slopes are to be 2J to and the formation width is to be 33 feet and feet is to be allowed for ballast What width of land will be required 13 In dialling for mining operations describe how the true bearing of headings is determined as distinguished from the magnetic 14 What are the Standing Orders of Parliament with reference to Poad alterations Junctions with existing railways Gradients Curves Tunnels and Viaducts Banks and Cuttings -- ------- SECOND YEAR Describe how to equalize irregular fences geometrically Describe how correctionמ is made in chaining on inclined ground both by chain and by instruments